The foramen of Huschke, or foramen tympanicum, is a developmental defect in the bony part of the external auditory canal (EAC) due to a defect in ossification of normal bone in the first 5 years of life. Seen in the anteroinferior part of the EAC, it can be asymptomatic or present with salivary discharge into the EAC during mastication or as soft tissue swelling in the EAC in the absence of any inflammation, tumor, or trauma. We present a case of a man who presented with herniation of soft tissues of the temporomandibular joint into the EAC through a persistent foramen tympanicum.

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Objectives: Clinically or sonographically suspected gallbladder carcinoma was evaluated on multidetector computed tomography. Based on the spectrum of multidetector computed tomography findings, staging of gallbladder carcinoma was done. Multidetector computed tomography diagnosis was compared with pathological diagnosis. Material and Methods: This is a prospective study carried out in 100 patients at a rural Indian center between May 2012 and June 2015. Multidetector computed tomography was performed in all the cases and the findings were observed. Based on the radiological spectrum, staging of gallbladder carcinoma was done. The diagnosis was confirmed by ultrasound guided fine needle aspiration cytology/histopathological examination of surgical specimens. Results: The most common multidetector computed tomography findings noted by us were mass replacing gallbladder, followed by diffuse/focal gallbladder wall thickening and polypoidal mass. Other findings noted were cholelithiasis, liver infiltration, intra hepatic biliary dilatation, liver metastases, portal vein invasion, antroduodenal and hepatic flexure involvement. Ultrasonography guided fine needle aspiration cytology done in all cases was positive in 92 cases and inconclusive in eight cases. Surgery was performed in only 22 patients, and histopathological findings were correlated with multidetector computed tomography findings.

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